RISK Universal Di2 Battery Holder Mount Adapter for Shimano Electronic Derailleur 27.2/31.6mm Bicycle Seatpost

RISK Di2 Internal Battery Holder for 27.2/31.6mm Seatpost

Securely holds Shimano Di2 batteries inside bicycle seatposts with a lightweight, anti-slip design.

Features:

• Compatible with Shimano Di2 batteries

• Suitable for 27.2mm & 31.6mm seatposts

• Flexible TPE material with anti-slip grip

• Lightweight and easy to install

Specifications:

• Material: TPE

• Colour: Black

• Narrow: 20–23mm inner diameter

• Wide: 21–29mm inner diameter

• Weight: 11.3g–13.8g

• Package: 1 Pair

Note: Check seatpost inner diameter before purchasing.